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133 Kelvin, about -140 Celsius. This is the critical temperature of a mercury -based superconductor. It contains copper-oxide, a common theme, I believe, in high temperature superconductors
Currently, the superconductor with the highest critical temperature ever recorded is Mercury Barium Thallium Copper Oxide or Hg0.2Tl0.8Ca2Cu3O, which has a critical temperature of 139 K at one atmosphere. This superconductor is a type of ceramic copper oxide and its critical temperature was determined in 1995 by Chakoumakos, Dai, Wong, Sun, Lu, and Xin. Apparently, metal-copper oxide ceramic superconductors have high critical temperatures, which might unlock the key of synthesizing a high temperature superconductor that is superconductive under room temperature conditions.
Amar K. Kamadoli has written: 'Strontium substitutions into the high-temperature Tl/Ba/Ca/Cu/O 2223 superconductor' -- subject(s): Strontium, High temperature superconductors
High-temperature superconductors are most commonly based on copper-oxide or iron-based compounds. Among these, yttrium barium copper oxide (YBCO) is one of the most widely studied and used high-temperature superconductors due to its relatively high critical temperature of around 90 K.
Hong Alice Wang has written: 'Reactions during processing of the 123 high Tc superconductor' -- subject(s): Ceramic superconductors, High temperature superconductors
The important Thermal Properties of Non-Ferrous Metals are:- 1. High Rate of Heat Transfer 2. Good Thermal Expansion 3. May be used as a High Temperature Superconductor
high concentration of carbon dioxide
A material becomes a superconductor when it can conduct electricity without any resistance. This happens when electrons form pairs that move collectively through the material. Superconductivity typically occurs at very low temperatures.
The best superconductor is generally considered to be niobium-tin (Nb3Sn) due to its high critical temperature and critical magnetic field, making it suitable for high-field applications like MRI machines and particle accelerators. Other high-temperature superconductors like yttrium barium copper oxide (YBCO) also exhibit promising properties for certain applications.
We currently don't know of any room temperature superconductors; we've managed to find some "high temperature" superconductors, but "high" in this case means "liquid nitrogen temperatures" ... about two hundred degrees Celsius below zero. The lowest naturally occurring temperature ever recorded on Earth is about 184K ... about fifty degrees Celsius above the point at which the highest-known-temperature superconductor becomes superconducting.
We currently don't know of any room temperature superconductors; we've managed to find some "high temperature" superconductors, but "high" in this case means "liquid nitrogen temperatures" ... about two hundred degrees Celsius below zero. The lowest naturally occurring temperature ever recorded on Earth is about 184K ... about fifty degrees Celsius above the point at which the highest-known-temperature superconductor becomes superconducting.
Superconductor capacitors offer advantages in electronic devices such as high energy storage capacity, fast charging and discharging rates, and low energy loss due to their zero resistance properties.